Carbureter for internal-combustion engines.



IPAIIENTED JUNE 2, 1908.

v J. C. SOHNEBLE. UARBURBTER FOR INTERNAL COMBUSTION ENGINES.

APPLICATION FILED MAY 28, 1907.

2 SHEETSSHEET 1.

I Inventor I 4 4 W1 t n esses norssmsv. 'PATENTED JUNE 2, 190a.

' c. SGHNEBL'EU 'CARBURETBR FOR INTERNAL COMBUSTION ENGINES.

AP PLIOATION FILED MAY 28. 1907.

2 SHEETSBHEET 2.

leg 26 1 a K m Q 1 air supply under a l UNITED STATES, PATENT. OFFICE.

.iosiain o. SCHNEBLE, OFDAYTON, .oHIo,'AssIeNoR or ONE-HALF ToTHEoDo'Ria o.

SGHNEBLE, or DAYTON. OHIO.

caanunamn Fox INTERNAL-COMBUSTION ENG/mas.

' speciflcation of-llletters Patents "Patented-Tune '2', 19.08.

Application filed May 2a, 1907. sees-m. 376,100.

To all whom it may concern:

Be-it known'tha't I, JOSEPH C. SCHNEBLE, a citizen of the United States, residing at Dayton, in the county of Montgomery and State of Ohio, have invented a certain new and useful Improvement in Carbureters for Internal-Combustion Engines, of which the The object I have in view is to produce a carbureter for internal combustion engines which will be simple in construction'and eflicient in operation, will produce an'effective vaporization of the gasolene or other liquid fuel employed when the engineis starting up and running slowl will provide an ample conditions of operation,

will secure an effectivev mixture of'the fuel and air and will enable the ready adjustment of the relative supplies of fuel andair soas to produce the proper mixture most effective or different kinds or grades of the liquid fuel;

' all as more fully hereinafter .explalned and .25 1ng my invention; Fig. 2 is a side elevationof pointed out in the claims. Inthe accompanying drawing, Figure l'is a top view of a form of carbureter embodythe carbureter; Fi 3 is a central vertical 'section of'the'car ureter perpendicular to i through the side we] the axis of the cam shaft; Fig. 4 is an end elevation of the bushing, through which the gasolene supply valve works Fig. '5 is a cross section won the line 55 in Fig. 3; Fi 6 is a erspective view of the cam control ing the u'el valve; and Fig. 7 isa pers ective view of the cam controlling the air va ve.

The body or bowl 8 of the carbureter has passing vertically through it the cylindrical a'lr chamber 9, open to the air at its lower end. In the bowl8 is located the float 10controlling the gasolene supply valve 11 which is guided by the bushing 11, the latter hav- 1ng aqcylindfical'slotted o ening as shown,

the slot form ng a passage or the flow of fuel into the bowl. In the center of the air inlet chamber 9 is located the gasolene vaporizing nozzle 12, opening u of the chamber 9 with the interior of the bowl ,8. Above thecham- I her 9 and fotming an extension-thereof, is a the engine. I The larger chamber 13, closed at its top by a plate 14 andihaving an opening 15 in its side connecting with the cylinder at cylinders of fuel valve 16 is a needle valve whose point enters the opening in the wardly and connecting the cam shaft. -cured"a cam 22 which bears upon thehead of 65 to of the nozzle 12. The shank of this valve is guided in the cap plate 14, and is provided above such cap plate with a head 17 held upwardly against the operating cam about to be described-by a spiral spring 18. Supported in standards rising from thecap plate 14 is the cam shaft 19, carrying on its end an operatingcrank 20, connected, by a rod 21 wlth any suitable means for turning Upon the'cam shaft 19 is sethe fuel valve'lfi, depressing t the force of' the spring 18 and controlling 'the opening in the nozzle 12. i The cam-.22 1 s se-; cured to the shaft 19 by 'means whereby it may be adjusted rotatively upon such shaft '70 for a purpose to be presently explained; such means isillustrated as a set screw-'23 (Figs; 1 and 2). Resting at its lowermost or closed position upon the platform forming the bot e same-against tom of the chamber 13 is the air valve 24;75

This air valve is an annular plate from the center opening in which depends acylindrical shit 25, extending centrally down into the air chamber 9 and surrounding the outlet,

of the nozzle 12 when the air valve is at its lowermost or closed position (Fig. 3).

Extending upwardly from theair valv are two rods 26,27, passing through andguided in the cap plate 14, and connected at-their; up er ends above the cam shaft 19 by a cross bar 28. S rings 29, 30 surround the rods 26, 27beneat .the cap'plate 14 and act to close the air valve. U on the cam shaft 19 is secured a cam 31 W iIlOh may be adjustable on said I shaft, or is preferably fixed thereon by means of a cross. pin. This cam bears against the under side of the cross bar 28, and when the cam shaft'is rotated so'as to bring the cam 31 into actiornithis cam forces the cross bar upwardly against the tension of the springs 29, 30, liftingtthe air valve 24 from its seat. The 0111113122 and 31 are constructed as shown so that they can be nested together upon the cam shaft. 19, and, while being independent and rela- .100 tively adjustable, will both bear centrally withrespe'ct to the general axis of the ap: paratus upon their cooperating parts.

In the operationof the carbureter, when the engine is started, the air valve 24 will be closed and the fuel valve'lfi will be opened to the desired extent by means of a camj 22, which is'moved by the shaft 19 by the agency 12, roduces a rapid flow of air around the noz e, notwithstanding the slow movement of the engine, and effectively va 0- rizes the gasolene. When the engine as .acquired its normal speed, a further move ment of the cam shaft 19 will bring the cam 31 into action, lifting the air valve24 from its seat and enlarging the air assage to the desired extent up to the full capacity of the air chamber 9. located in the center of the air column a thorou h mixture of the fuel with the air is securec under all conditions.

the cam 22 thereon, the extent 0 o ening o the fuelvalve can be regulated wit respect to the extent of opening of the air valve, so

as to produce a ro er mixture of'the vapor and air to give t e est effect with'diifer'ent kinds or rades of the liquid fuel.

What claim is: v

1. In a carbureter, the combination with a cylindrical air chamber-and a fuel nozzle located axially therein, of an annular air valve provided with a skirt from its central 0 ening surrounding the fuel nozzle when t e air valve is closed, a central needle valve controlling the opening in the nozzle, and

, rotating cams for operating the air valve and the fuel valve, simultaneously, substantially as set forth.

2. In a -carbureter, the combination with a cylindrical air chamber and a fuel nozzle located axially therein, of an annular air valve provided with a skirt from its central opening. surrounding the fuel nozzle when t e air valve is closed, a central needle, valve controlling the opening in the nozzle rotating cams for moving both valves and means for The nozzle 12 being By adjusting 'rotatively the relative positions of the cams 22, 31, upon the shaft 19, as b adjusting f a needle fuel valve passing axially through.

adjusting the r lative movement of the and fuel valves, substantially [as set forth.

3. Ina carbureter, the combination with a cylindrical air chamber and a fuel nozzle located axially therein, of an annular air valve having a cylindrical skirt surroun the fuel nozzle when the air valve-is close a needle fuel valve passing axially through the air valve, rods'extendmg from the fuel valve and air valve through the --top of the carbureter, and cams acting simultaneously upon both sets of rods to move the valves together, substantially as set forth.

4. In a carbureter, the combination with a cylindricalair chamber and a fuel nozzle located axially therein, of an annular air valve having a cylindrical skirt surrounfi the fuel'nozzle when the air valveis cl the air valve, rods extending from the fuel valve and air valve'through theto of the carbureter, and relatively adjustab e cams acting simultaneously upon .both sets of rods to move the valves together, substantially v as set forth.

. 5. In a carbureter, the combination fuel and air valves, of spring rods mo such valves in one direction, a cam sha t located between parts connected with said valves, and indegerdent relatively adjustable cams carrie said cam shaft and bearing on such va ve' parts. against the spring pressure, such cams being nested or overlapping so as to bear centrally with respect to the axis of the carburetor, substantially as set forth.

This specification signed andwitnessed this 25th day of May, 1907.

' JOSEPH C. SCHNEBLE.

Witnesses: J. H. NEWMAN,

FRANK S. BREENE. 

